C# code to find SharePoint web application Group's.
  1. public List<NameValuePair> GetGroups(string siteUrl)
  2. {
  3. List<NameValuePair> groups = new List<NameValuePair>();

  5. using (SPSite site = new SPSite(siteUrl))
  6. {
  8. using (SPWeb web = site.OpenWeb())
  9. {
  10. foreach (SPGroup group in web.Groups)
  11. {
  12. groups.Add(new NameValuePair() { Value = group.Name, Name = group.Name });
  13. }
  14. }
  15. }
  17. return groups;
  18. }
C# code to find SharePoint web application Group owner names.
  1. public List<NameValuePair> GetGroupsWithOwner(string siteUrl)
  2. {
  3. List<NameValuePair> groups = new List<NameValuePair>();

  5. using (SPSite site = new SPSite(siteUrl))
  6. {
  8. using (SPWeb web = site.OpenWeb())
  9. {
  10. string ownerName = string.Empty;
  11. foreach (SPGroup group in web.Groups)
  12. {
  14. if (group.Owner is SPUser)
  15. {
  16. ownerName = (group.Owner as SPUser).Name;
  17. }
  18. else if (group.Owner is SPGroup)
  19. {
  20. ownerName = (group.Owner as SPGroup).Name;
  21. }
  22. groups.Add(new NameValuePair() { Value = group.Name, Name = string.Format("{0} ({1})", group.Name, ownerName) });
  23. }
  24. }
  25. }
  27. return groups;
  28. }
C# code to remove specific group from given web application.
  1. public List<NameValuePair> RemoveGroups(List<string> groups, string siteUrl)
  2. {
  3. List<NameValuePair> groupstatus = new List<NameValuePair>();
  5. using (SPSite site = new SPSite(siteUrl))
  6. {
  8. using (SPWeb web = site.OpenWeb())
  9. {
  10. NameValuePair groupstat;
  12. foreach (string group in groups)
  13. {
  14. groupstat = new NameValuePair();
  15. try
  16. {
  17. web.Groups.Remove(group);
  18. groupstat.Name = string.Format("{0} removed sucessfully.", group);
  19. groupstat.Value = true;
  20. }
  21. catch (Exception ex)
  22. {
  23. groupstat.Name = string.Format("Error {1} while removing gorup {0}", group, ex.Message);
  24. groupstat.Value = false;
  25. }
  27. groupstatus.Add(groupstat);
  28. }
  29. }
  30. }
  32. return groupstatus;
  33. }
C# code to add user to web application.
  1. public bool AddUserToGroup(string siteUrl, string groupName, string memberName)
  2. {
  3. bool isOwnerUpdated = false;
  4. using (SPSite site = new SPSite(siteUrl))
  5. {
  6. using (SPWeb web = site.OpenWeb())
  7. {
  10. try
  11. {
  12. SPUser user = web.EnsureUser(memberName);
  13. SPGroup group = web.Groups[groupName];
  14. group.AddUser(user);
  15. group.Update();
  16. }
  17. catch (Exception ex)
  18. {
  19. }
  20. }
  21. }
  23. return isOwnerUpdated;
  25. }
C# code to set owner for web application.
  1. public bool SetOwnerToGroup(string siteUrl, string groupName, string ownerName, bool isGroup)
  2. {
  3. bool isOwnerUpdated = false;
  5. using (SPSite site = new SPSite(siteUrl))
  6. {
  7. using (SPWeb web = site.OpenWeb())
  8. {
  9. try
  10. {
  11. SPGroup group = web.Groups[groupName];
  12. SPMember owner;
  13. owner = web.Groups[ownerName];
  14. group.Owner = owner;
  15. group.Update();
  16. }
  17. catch (Exception ex)
  18. {
  19. isOwnerUpdated = false;
  21. }
  22. }
  23. }
  24. return isOwnerUpdated;
  25. }
C# code to get group members.
  1. public List<NameValuePair> GetGroupMembers(string siteUrl, string groupName)
  2. {
  3. List<NameValuePair> groupMembers = new List<NameValuePair>();
  5. using (SPSite site = new SPSite(siteUrl))
  6. {
  8. using (SPWeb web = site.OpenWeb())
  9. {
  10. NameValuePair groupMember;
  12. SPGroup group = web.Groups[groupName];
  14. foreach (SPUser user in group.Users)
  15. {
  16. groupMember = new NameValuePair();
  17. groupMember.Value = groupMember.Name = user.Name;
  19. groupMembers.Add(groupMember);
  20. }
  21. }
  22. }
  24. return groupMembers;
  25. }
C# code to check valid users.
  1. public bool IsValidUser(string UserName, SPWeb web)
  2. {
  3. SPAdministrationWebApplication centralAdmin = SPAdministrationWebApplication.Local;
  5. SPPrincipalInfo principle = SPUtility.ResolvePrincipal(centralAdmin, SPUrlZone.Default, UserName,
  6. SPPrincipalType.User, SPPrincipalSource.All, false);
  7. //( web , SPUrlZone.Default, UserName, SPPrincipalType.User, SPPrincipalSource.All, false);
  9. if (principle == null)
  10. return false;
  11. return true;
  12. }